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Finding the Fourth Proportional to 629,503.80, 868,715.60 and 343,023.76

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Solution

The fourth proportional to 629,503.80, 868,715.60 and 343,023.76 is: 473,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,503.80 : 868,715.60 = 343,023.76 : x
  2. Step 2: Convert to fraction form
    629,503.80/868,715.60 = 343,023.76/x
  3. Step 3: Cross multiply
    629,503.80x = 868,715.60 × 343,023.76
  4. Step 4: Simplify right side
    629,503.80x = 297,990,091,482.66
  5. Step 5: Solve for x
    x = 297,990,091,482.66/629,503.80
  6. Step 6: Final answer
    x = 473,372.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.